 The horizontal directional crystallization method was used to grow Su-3 plus doped Al-203 YAG eutectics. The crystallization rate was varied from 1 to 7.5 mm slash H at a growth temperature of 1835 degrees Celsius. The microstructure of the eutectic was examined using scanning electron microscopy and x-ray microtomography. The intrinsic morphology of the eutectic consisted of stripe-like channels with a random distribution of Y3L5012 YAG and Al-203 SAFIRE phases. The ratio of these two phases was found to vary from 52.9 to 55.3% and 46.1 to 47.1%, respectively, depending on the growth rate of the crystallization. The luminescent properties of the eutectic demonstrated the dominant Su-3 plus luminescence in the garnet phase. Additionally, the luminescence of Su-3 plus ions in Al-203 was observed as well. The energy transfer processes between Su-3 plus ions in the Al-203 and YAG garnet phases were revealed. This article was authored by Anna Shokno, Tessiana Zarenko, Sandra Wikiwicks Lukasek, and others. We are article.tv, links in the description below.